McCarthy was optioned Monday to Triple-A Reno, Theo Mackie of The Arizona Republic reports.

EDGE Analysis

It's the second demotion of the year for McCarthy, who has racked up 26 stolen bases but carries a rough .245/.325/.331 batting line across 291 plate appearances. Kyle Lewis will fill his spot on the Diamondbacks' major-league roster ahead of Monday's series opener at Coors Field in Colorado.